IBM N Series, Implementation Manual

Page: 34 / 105

20 Considerations when planning storage requirements
Considerations when planning storage requirements
Before you start setting up your gateways, you need to determine how much
storage you need for your organization’s requirements and where you want to
locate data—what should go on disks and what should go on array LUNs. You
need to know this information to configure your gateway.
Considerations include the following:
◆
Which LUNs on the storage arrays do you want this gateway to own and
what should the checksum type of each be?
◆
Which native disks do you want this gateway to own?
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Where do you want to locate the root volume?
See “ Considerations when planning for the root volume ” on page 24 for
information about your choices.
◆
Do you want your native disk shelf to be used only for the root volume, only
for data, or for both?
◆
Do you want your array LUNs to be used only for the root volume, only for
data, or for both?
◆
If you are moving a disk shelf from an N series storage system to a gateway,
do you want to preserve the data on that disk shelf?
◆
How do you want to use your aggregates and volumes?